remove all subLayers from a view

Question

In an animation I added a lot of sublayers to a view, with:

[self.view.layer addSublayer:layer1];
[self.view.layer addSublayer:         


        

Answer 1

If you want to delete all sublayers and add a new one, you can easily do:

rootLayer.sublayers = [layer1] // adding one layer

rootLayer.sublayers = [layer1, layer2, ...] // adding two or more layers

This could be helpful, if you work with tableview or collectionview cells. You don't need to call prepareForReuse for removing the sublayers.